/** Proofs GPU - Space and Time's cryptographic proof algorithms on the CPU and GPU.
 *
 * Copyright 2024-present Space and Time Labs, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include "sxt/base/num/round_up.h"

#include "sxt/base/test/unit_test.h"

using namespace sxt;
using namespace sxt::basn;

TEST_CASE("we can round a number up to the nearest multiple") {
  int x = 4;
  int y;

  SECTION("if x is already a multiple of y, we return the identity") {
    y = 2;
    REQUIRE(round_up(x, y) == x);
  }

  SECTION("if x is not already a multiple, we return the next multiple") {
    y = 3;
    REQUIRE(round_up(x, y) == 6);
  }
}
